<!DOCTYPE html>
<html>

<head>
    <meta charset="utf-8">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0">
    <title></title>
    <script>
        function saveFn() {
            window.save();
        }
        
        function prevFn() {
            window.prev();
        }
    </script>
</head>

<body>
<div id="app"></div>
</body>

</html>